Hemophilia A is characterized by:

Correct Answer: C

Rationale: Hemophilia A is a clotting disorder due to Factor VIII deficiency, leading to prolonged activated partial thromboplastin time (APTT) while PT, BT, and TT remain normal.

Correct Answer: A

Rationale: The double-bowel wall sign is an early ultrasonographic sign of hydrops. The other findings are also associated with hydrops but may appear later.

Correct Answer: D

Rationale: Nebulized adrenaline is commonly used to treat croup by reducing airway swelling and improving breathing.

Correct Answer: D

Rationale: Advanced life support (ALS) includes airway management, vascular access, fluid resuscitation, and defibrillation, but does not specifically focus on treating arrhythmias, which is a specialized intervention.

Correct Answer: D

Rationale: Tentorial herniation leads to compression of the oculomotor nerve, causing a fixed, dilated pupil on the affected side.